MOSMATIC Rotary Union: Straight, Nickel-Plated C38500 Brass, 1 Passages, 1/4 in Stationary Port
The MOSMATIC Rotary Union: Straight (MPN 32.557) is a nickel-plated C38500 brass rotating joint designed for air service, featuring a single passage and a 1/4 in stationary port. It supports a maximum speed of 30…
SKU 3G-OTH-464552
Need installation or engineering help?
Ask a question
Product Description
The MOSMATIC Rotary Union: Straight (MPN 32.557) is a nickel-plated C38500 brass rotating joint designed for air service, featuring a single passage and a 1/4 in stationary port. It supports a maximum speed of 30 RPM, providing a straightforward solution for transferring air in rotating equipment applications.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the MOSMATIC Rotary Union 32.557 used for?
The MOSMATIC Rotary Union 32.557 transfers air from a stationary supply line into rotating equipment. It is commonly used in industrial machinery such as reels, spindles, and indexing tables where a single air passage is needed at speeds up to 30 RPM.
What are the specifications of the MOSMATIC Rotary Union 32.557?
This MOSMATIC rotary union is a straight, single-passage model with a nickel-plated C38500 brass body. It has a 1/4 in stationary port and is rated for air service at a maximum speed of 30 RPM. The manufacturer part number is 32.557.
Where to buy the MOSMATIC Rotary Union 32.557 worldwide?
3G Electric supplies the MOSMATIC Rotary Union 32.557 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this rotating joint.
How to install the MOSMATIC Rotary Union 32.557?
Ensure the stationary port is securely connected to the air supply line and the rotating side is aligned with the equipment shaft. Use thread sealant on NPT connections and verify the union is not subjected to side loads exceeding its design. Follow MOSMATIC's generic installation guidelines for brass rotary joints.
Used in
Common applications for MOSMATICMOSMATIC Products
3G Electric supplies MOSMATIC brass rotating joints & unions. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









